Arriving around 6pm on a Friday I was given the last room available, which was quite small with an even smaller window. The bathroom however was large and bright with Dove bodywash/shampoo, and the bed was extremely comfortable. I visited Haarlem on supposedly the hottest day of the year and even with the A/C cranked up to the maximum my room still felt very warm and stuffy.
Water dispensers were available on each floor which came in very handy in the heat. Wireless wifi was also provided.
The location of Frans Hals is excellent, with Grote Markt one block away on one side and the canal on the other. There are plenty of cafes and restaurants within 2-minute walk and the long shopping street is an easy 5-min walk away.